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Finding the Fourth Proportional to 654,625.98, 903,197.52 and 392,874.93

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Solution

The fourth proportional to 654,625.98, 903,197.52 and 392,874.93 is: 542,055.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,625.98 : 903,197.52 = 392,874.93 : x
  2. Step 2: Convert to fraction form
    654,625.98/903,197.52 = 392,874.93/x
  3. Step 3: Cross multiply
    654,625.98x = 903,197.52 × 392,874.93
  4. Step 4: Simplify right side
    654,625.98x = 354,843,662,446.17
  5. Step 5: Solve for x
    x = 354,843,662,446.17/654,625.98
  6. Step 6: Final answer
    x = 542,055.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.